X-Git-Url: https://sipb.mit.edu/gitweb.cgi/ikiwiki.git/blobdiff_plain/62962a470d48dd14ebcd39f1de37504abd2f77b5..146192d5b01329bd8e5dfbf4045efded467151e0:/IkiWiki/Plugin/git.pm?ds=inline

diff --git a/IkiWiki/Plugin/git.pm b/IkiWiki/Plugin/git.pm
index 1facb14c0..5bef92856 100644
--- a/IkiWiki/Plugin/git.pm
+++ b/IkiWiki/Plugin/git.pm
@@ -9,6 +9,7 @@ use open qw{:utf8 :std};
 
 my $sha1_pattern     = qr/[0-9a-fA-F]{40}/; # pattern to validate Git sha1sums
 my $dummy_commit_msg = 'dummy commit';      # message to skip in recent changes
+my $no_chdir=0;
 
 sub import { #{{{
 	hook(type => "checkconfig", id => "git", call => \&checkconfig);
@@ -23,7 +24,7 @@ sub import { #{{{
 	hook(type => "rcs", id => "rcs_recentchanges", call => \&rcs_recentchanges);
 	hook(type => "rcs", id => "rcs_diff", call => \&rcs_diff);
 	hook(type => "rcs", id => "rcs_getctime", call => \&rcs_getctime);
-	hook(type => "rcs", id => "rcs_test_receive", call => \&rcs_test_receive);
+	hook(type => "rcs", id => "rcs_receive", call => \&rcs_receive);
 } #}}}
 
 sub checkconfig () { #{{{
@@ -45,7 +46,7 @@ sub checkconfig () { #{{{
 		push @{$config{wrappers}}, {
 			test_receive => 1,
 			wrapper => $config{git_test_receive_wrapper},
-			wrappermode => "0755",
+			wrappermode => (defined $config{git_wrappermode} ? $config{git_wrappermode} : "06755"),
 		};
 	}
 } #}}}
@@ -77,7 +78,7 @@ sub getsetup () { #{{{
 			safe => 0, # file
 			rebuild => 0,
 		},
-		git_untrusted_committers => {
+		untrusted_committers => {
 			type => "string",
 			example => [],
 			description => "unix users whose commits should be checked by the pre-receive hook",
@@ -127,8 +128,10 @@ sub safe_git (&@) { #{{{
 	if (!$pid) {
 		# In child.
 		# Git commands want to be in wc.
-		chdir $config{srcdir}
-		    or error("Cannot chdir to $config{srcdir}: $!");
+		if (! $no_chdir) {
+			chdir $config{srcdir}
+			    or error("Cannot chdir to $config{srcdir}: $!");
+		}
 		exec @cmdline or error("Cannot exec '@cmdline': $!");
 	}
 	# In parent.
@@ -362,8 +365,10 @@ sub git_commit_info ($;$) { #{{{
 	# starting from the given sha1sum.
 	my ($sha1, $num) = @_;
 
-	my @raw_lines = run_or_die('git', 'log',
-		(defined $num ? "--max-count=$num" : ""), 
+	my @opts;
+	push @opts, "--max-count=$num" if defined $num;
+
+	my @raw_lines = run_or_die('git', 'log', @opts,
 		'--pretty=raw', '--raw', '--abbrev=40', '--always', '-c',
 		'-r', $sha1, '--', '.');
 	my ($prefix) = run_or_die('git', 'rev-parse', '--show-prefix');
@@ -588,15 +593,7 @@ sub rcs_getctime ($) { #{{{
 	return $ctime;
 } #}}}
 
-sub rcs_test_receive () { #{{{
-	# quick success if the user is trusted
-	my $committer=(getpwuid($<))[0];
-	if (! defined $committer) {
-		error("cannot determine username for $<");
-	}
-	exit 0 if ! ref $config{git_untrusted_committers} ||
-	          ! grep { $_ eq $committer } @{$config{git_untrusted_committers}};
-
+sub rcs_receive () { #{{{
 	# The wiki may not be the only thing in the git repo.
 	# Determine if it is in a subdirectory by examining the srcdir,
 	# and its parents, looking for the .git directory.
@@ -610,54 +607,83 @@ sub rcs_test_receive () { #{{{
 		}
 	}
 
-	my @errors;
+	my @rets;
 	while (<>) {
 		chomp;
 		my ($oldrev, $newrev, $refname) = split(' ', $_, 3);
-
+		
 		# only allow changes to gitmaster_branch
 		if ($refname !~ /^refs\/heads\/\Q$config{gitmaster_branch}\E$/) {
-			push @errors, sprintf(gettext("you are not allowed to change %s"), $refname);
+			error sprintf(gettext("you are not allowed to change %s"), $refname);
 		}
-
-		foreach my $ci (git_commit_info($oldrev."..".$newrev)) {
+		
+		# Avoid chdir when running git here, because the changes
+		# are in the master git repo, not the srcdir repo.
+		# The pre-recieve hook already puts us in the right place.
+		$no_chdir=1;
+		my @changes=git_commit_info($oldrev."..".$newrev);
+		$no_chdir=0;
+
+		foreach my $ci (@changes) {
 			foreach my $detail (@{ $ci->{'details'} }) {
 				my $file = $detail->{'file'};
 
-				# check that all changed files are in the subdir
+				# check that all changed files are in the
+				# subdir
 				if (length $subdir &&
 				    ! ($file =~ s/^\Q$subdir\E//)) {
-					push @errors, sprintf(gettext("you are not allowed to change %s"), $file);
-					next;
+					error sprintf(gettext("you are not allowed to change %s"), $file);
 				}
 
-				if ($detail->{'mode_from'} ne $detail->{'mode_to'}) {
-					push @errors, gettext("you are not allowed to change file modes");
+				my ($action, $mode, $path);
+				if ($detail->{'status'} =~ /^[M]+\d*$/) {
+					$action="change";
+					$mode=$detail->{'mode_to'};
 				}
-
-				if ($detail->{'status'} =~ /^D+\d*/) {
-					# TODO check_canremove
+				elsif ($detail->{'status'} =~ /^[AM]+\d*$/) {
+					$action="add";
+					$mode=$detail->{'mode_to'};
 				}
-				elsif ($detail->{'status'} !~ /^[MA]+\d*$/) {
-					push @errors, "unknown status ".$detail->{'status'};
+				elsif ($detail->{'status'} =~ /^[DAM]+\d*/) {
+					$action="remove";
+					$mode=$detail->{'mode_from'};
 				}
 				else {
-					# TODO check_canedit
-					# TODO check_canattach
+					error "unknown status ".$detail->{'status'};
+				}
+				
+				# test that the file mode is ok
+				if ($mode !~ /^100[64][64][64]$/) {
+					error sprintf(gettext("you cannot act on a file with mode %s"), $mode);
+				}
+				if ($action eq "change") {
+					if ($detail->{'mode_from'} ne $detail->{'mode_to'}) {
+						error gettext("you are not allowed to change file modes");
+					}
 				}
+				
+				# extract attachment to temp file
+				if (($action eq 'add' || $action eq 'change') &&
+				     ! pagetype($file)) {
+					eval q{use File::Temp};
+					die $@ if $@;
+					my $fh;
+					($fh, $path)=File::Temp::tempfile("XXXXXXXXXX", UNLINK => 1);
+					if (system("git show ".$detail->{sha1_to}." > '$path'") != 0) {
+						error("failed writing temp file");
+					}
+				}
+
+				push @rets, {
+					file => $file,
+					action => $action,
+					path => $path,
+				};
 			}
 		}
 	}
 
-	if (@errors) {
-		# TODO clean up objects from failed push
-
-		print STDERR "$_\n" foreach @errors;
-		exit 1;
-	}
-	else {
-		exit 0;
-	}
+	return reverse @rets;
 } #}}}
 
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